The difference between men and women was significant for all age groups (P ≤.001).

Seborrheic dermatitis (SD) prevalence is higher in men, and the skin disorder appears to be associated with fungal and bacterial diseases, according to a study published in the British Journal of Dermatology.

The study used data from voluntary company skin checks conducted between 2001 and 2016 at >500 companies in Germany. A total of 161,269 participants were included (mean age, 43.2±10.9). Participants were referred to a dermatologist in cases where treatment was required. The location and appearance of skin lesions helped dermatologists establish a clinical diagnosis of SD in all subjects. A logistic regression analysis adjusted for age and sex explored the association of additional dermatological conditions with SD.

The prevalence rate of SD in the overall cohort was 3.2%, with a significantly higher rate in men vs women (4.6% vs 1.4%, respectively; P ≤.001). Prevalence of SD was also significantly higher in older age groups (2.0% in patients aged <35 years vs 3.6% in patients aged 35-64 vs 4.4% in patients aged ≥65; P ≤.001).